TxBuilder: Introduce TransactionBuilder.appTransfer

[msmania]

This patch implements a new feature AppTransfer (PIP-35; introduced by pokt-network/pocket-core#1585).

[nodiesBlade]

Hey @msmania , looks good overall. Can you provide evidence that this works via testnet? (I.E a snippet of the code and a transaction hash with success)

[msmania]

Hey @msmania , looks good overall. Can you provide evidence that this works via testnet? (I.E a snippet of the code and a transaction hash with success)

I was lazy enough not to run this on testnet. I did it now.

Tx is this.

import "dotenv/config";
import { JsonRpcProvider } from "@pokt-foundation/pocketjs-provider";
import { KeyManager } from "@pokt-foundation/pocketjs-signer";
import { TransactionBuilder } from "@pokt-foundation/pocketjs-transaction-builder";

const PoktEndpoint = process.env.POKT_ENDPOINT;
const TxSignerKey = process.env.SIGNER_PRIVATE_KEY;

async function main() {
  const provider = new JsonRpcProvider({
    rpcUrl: PoktEndpoint,
    dispatchers: [PoktEndpoint],
  });

  const height = await provider.getBlockNumber();
  console.log(height);

  const txSigner = await KeyManager.fromPrivateKey(TxSignerKey);
  const transactionBuilder = new TransactionBuilder({
    provider,
    signer: txSigner,
    chainID: "testnet",
  });
  const sendMsg = transactionBuilder.appTransfer({
    appPubKey: "f53b9120f4f18c09f883e82b5c1554eddb78cd56eb753eb2ae0dfdbc492cfaaf",
  });
  const txResponse = await transactionBuilder.submit({
    memo: "Transfer!",
    txMsg: sendMsg,
  });
  console.log(txResponse.txHash);
}

main()
  .then(() => process.exit(0))
  .catch(error => {
    console.error(error);
    process.exit(1);
  });

[nodiesBlade]

Thanks for testing it on testnet. I believe this is sufficient proof that the function works.

We should bump the version once the rev-share stake PR is complete.

LGTM